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Reply to Poly vs. TrivexThe poly with crizal coating is still clear but try putting it under a UV tester then let us know the result.
The Trivex with HVVP coating is yellow but try putting it under a UV tester then let us know the result.
My guess is, the poly with crizal no longer has UV protection, but...06-08-2010, 11:45 AM -
Reply to Poly vs. TrivexI'm fairly new to the field, so please bear with me but I was under the impression that Tri-vex lenses were a brand of poly and not a different material. What is the ABBI value and ref index of Tri-vex comp to poly? Secondly any pro and con info anyone can give me about Tri-vex (aside from poss yellowing)...05-15-2010, 08:41 AM
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Reply to Poly vs. TrivexI have been using Trivex for over six years now and have seen only one instance of yellowing. I have completely purged my practice of Poly all together. I surfaced lenses for fifteen years and have always had problems with Poly's lack of clarity in a lensometer and poor scratch resistance. One thing...05-05-2010, 06:13 AM -
Reply to The Myth of AbbeI dont argue with anyone who uses sub and superscripts in his posts. ;)05-03-2010, 07:37 PM
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Reply to Poly vs. TrivexWithin two years many Poly rimless jobs show stress cracks so you trade one problem for another, plus I have yet to have a patient complain about yellowing of Trivex lenses while many patients bring in cracked poly lenses (not fit in our optical).04-28-2010, 06:21 AM